/usr/lib/lazarus/0.9.30.4/ideintf/graphpropedits.pas is in lazarus-src-0.9.30.4 0.9.30.4-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 | {
*****************************************************************************
* *
* See the file COPYING.modifiedLGPL.txt, included in this distribution, *
* for details about the copyright. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* *
*****************************************************************************
Author: Andrew Johnson, Mattias Gaertner
Abstract:
This units defines the property editors for graphic types.
}
unit GraphPropEdits;
{$mode objfpc}{$H+}
interface
uses
Classes, TypInfo, SysUtils, LCLProc, Forms, Controls, LCLType, GraphType,
FileUtil, Graphics, StdCtrls, Buttons, ComCtrls, Menus, ExtCtrls, Dialogs,
LCLIntf, ExtDlgs, PropEdits, PropEditUtils, ImgList, Math,
GraphicPropEdit; // defines TGraphicPropertyEditorForm
type
{ TGraphicPropertyEditor
The default property editor for all TGraphic's and sub types (e.g. TBitmap,
TPixmap, TIcon, etc.). }
TGraphicPropertyEditor = class(TClassPropertyEditor)
public
procedure Edit; override;
function GetAttributes: TPropertyAttributes; override;
end;
{ TPicturePropertyEditor
The default property editor for TPicture}
TPicturePropertyEditor = class(TGraphicPropertyEditor)
public
procedure Edit; override;
end;
{ TButtonGlyphPropEditor
The default property editor for the Glyphs of TSpeedButton and TBitBtn }
TButtonGlyphPropEditor = class(TGraphicPropertyEditor)
public
procedure Edit; override;
end;
{ TColorPropertyEditor
PropertyEditor editor for the TColor type. Displays the color as a clXXX value
if one exists, otherwise displays the value as hex. Also allows the
clXXX value to be picked from a list. }
TColorPropertyEditor = class(TIntegerPropertyEditor)
public
procedure Edit; override;
function GetAttributes: TPropertyAttributes; override;
function OrdValueToVisualValue(OrdValue: longint): string; override;
procedure GetValues(Proc: TGetStrProc); override;
procedure SetValue(const NewValue: ansistring); override;
procedure ListMeasureWidth(const CurValue: ansistring; Index: integer;
ACanvas: TCanvas; var AWidth: Integer); override;
procedure ListDrawValue(const CurValue: ansistring; Index: integer;
ACanvas: TCanvas; const ARect:TRect; AState: TPropEditDrawState); override;
procedure PropDrawValue(ACanvas: TCanvas; const ARect: TRect;
AState: TPropEditDrawState); override;
end;
{ TBrushStylePropertyEditor
PropertyEditor editor for TBrush's Style. Provides custom render. }
TBrushStylePropertyEditor = class(TEnumPropertyEditor)
public
function GetAttributes: TPropertyAttributes; override;
procedure ListMeasureWidth(const CurValue: ansistring; Index:integer;
ACanvas: TCanvas; var AWidth: Integer); override;
procedure ListDrawValue(const CurValue: ansistring; Index:integer;
ACanvas: TCanvas; const ARect: TRect; AState: TPropEditDrawState); override;
procedure PropDrawValue(ACanvas: TCanvas; const ARect: TRect;
AState: TPropEditDrawState); override;
end;
{ TPenStylePropertyEditor
PropertyEditor editor for TPen's Style. Simply provides custom render. }
TPenStylePropertyEditor = class(TEnumPropertyEditor)
public
function GetAttributes: TPropertyAttributes; override;
procedure ListMeasureWidth(const CurValue: ansistring; Index:integer;
ACanvas: TCanvas; var AWidth: Integer); override;
procedure ListDrawValue(const CurValue: ansistring; Index:integer;
ACanvas: TCanvas; const ARect: TRect; AState: TPropEditDrawState); override;
procedure PropDrawValue(ACanvas: TCanvas; const ARect: TRect;
AState:TPropEditDrawState); override;
end;
{ TFontPropertyEditor
PropertyEditor editor for the Font property.
Brings up the font dialog as well as allowing the properties of the object to
be edited. }
TFontPropertyEditor = class(TClassPropertyEditor)
public
procedure Edit; override;
function GetAttributes: TPropertyAttributes; override;
end;
{ TFontNamePropertyEditor
PropertyEditor editor for TFont.Name. Simply provides listing font names. }
TFontNamePropertyEditor = class(TStringPropertyEditor)
public
function GetAttributes: TPropertyAttributes; override;
procedure GetValues(Proc: TGetStrProc); override;
end;
{ TFontCharsetPropertyEditor
PropertyEditor editor for the TFontCharset properties.
Displays Charset as constant name if exists, otherwise an integer. }
TFontCharsetPropertyEditor = class(TIntegerPropertyEditor)
public
function GetAttributes: TPropertyAttributes; override;
function OrdValueToVisualValue(OrdValue: longint): string; override;
procedure GetValues(Proc: TGetStrProc); override;
procedure SetValue(const NewValue: ansistring); override;
end;
{ TImageIndexPropertyEditor
PropertyEditor editor for ImageIndex. Provides list of glyphs. }
TImageIndexPropertyEditor = class(TIntegerPropertyEditor)
protected
function GetImageList: TCustomImageList; virtual;
public
function GetAttributes: TPropertyAttributes; override;
procedure GetValues(Proc: TGetStrProc); override;
procedure ListMeasureHeight(const AValue: ansistring; Index:integer;
ACanvas:TCanvas; var AHeight: Integer); override;
procedure ListDrawValue(const CurValue: ansistring; Index:integer;
ACanvas: TCanvas; const ARect: TRect; AState: TPropEditDrawState); override;
end;
//==============================================================================
// Delphi Compatible Property Editor Classnames
type
TFontNameProperty = TFontNamePropertyEditor;
//TFontCharsetProperty = TFontCharsetPropertyEditor;
TColorProperty = TColorPropertyEditor;
TBrushStyleProperty = TBrushStylePropertyEditor;
TPenStyleProperty = TPenStylePropertyEditor;
TFontProperty = TFontPropertyEditor;
implementation
{ TGraphicPropertyEditor }
procedure TGraphicPropertyEditor.Edit;
var
TheDialog: TGraphicPropertyEditorForm;
AGraphic: TGraphic;
FreeGraphic: Boolean;
begin
AGraphic := TGraphic(GetObjectValue(TGraphic));
TheDialog := TGraphicPropertyEditorForm.Create(nil);
FreeGraphic:=false;
try
if (AGraphic <> nil) then
TheDialog.Preview.Picture.Assign(AGraphic)
else
AGraphic := nil;
if (TheDialog.ShowModal = mrOK) then
begin
if TheDialog.Preview.Picture.Graphic <> nil then
begin
if TheDialog.Modified and FileExistsUTF8(TheDialog.FileName) then
begin
FreeGraphic := AGraphic = nil;
if FreeGraphic then
AGraphic := TGraphicClass(GetTypeData(GetPropType)^.ClassType).Create;
if AGraphic.ClassType = TheDialog.Preview.Picture.Graphic.ClassType then
AGraphic.LoadFromFile(TheDialog.FileName)
else
AGraphic.Assign(TheDialog.Preview.Picture.Graphic);
SetPtrValue(AGraphic);
Modified;
end;
end
else
if AGraphic <> nil then
begin
AGraphic.Clear;
Modified;
end;
end;
finally
if FreeGraphic then
AGraphic.Free;
TheDialog.Free;
end;
end;
function TGraphicPropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result := [paDialog, paRevertable, paReadOnly];
end;
{ TPicturePropertyEditor }
procedure TPicturePropertyEditor.Edit;
procedure AddPackage(Picture: TPicture);
begin
if Picture.Graphic=nil then exit;
//DebugLn(['AddPackage ',dbgsname(Picture.Graphic)]);
GlobalDesignHook.AddDependency(Picture.Graphic.ClassType,'');
end;
var
TheDialog: TGraphicPropertyEditorForm;
Picture: TPicture;
begin
Picture := TPicture(GetObjectValue(TPicture));
TheDialog := TGraphicPropertyEditorForm.Create(nil);
if (Picture.Graphic <> nil) then
TheDialog.Preview.Picture.Graphic := Picture.Graphic;
try
if (TheDialog.ShowModal = mrOK) then
begin
if TheDialog.Preview.Picture.Graphic <> nil then
begin
if TheDialog.FileName <> '' then
if FileExistsUTF8(TheDialog.FileName) then
begin
Picture.LoadFromFile(TheDialog.FileName);
AddPackage(Picture);
end;
end
else
Picture.Graphic := nil;
Modified;
end;
finally
TheDialog.Free;
end;
end;
{ TButtonGlyphPropEditor }
procedure TButtonGlyphPropEditor.Edit;
var
TheDialog: TGraphicPropertyEditorForm;
ABitmap: TBitmap;
begin
ABitmap := TBitmap(GetObjectValue(TBitmap));
TheDialog := TGraphicPropertyEditorForm.Create(nil);
try
if not ABitmap.Empty then
TheDialog.Preview.Picture.Assign(ABitmap);
if (TheDialog.ShowModal = mrOK) then
begin
if TheDialog.Modified then
begin
ABitmap.Assign(TheDialog.Preview.Picture.Graphic);
Modified;
end;
end;
finally
TheDialog.Free;
end;
end;
{ TColorPropertyEditor }
procedure TColorPropertyEditor.Edit;
var
ColorDialog: TColorDialog;
begin
ColorDialog := TColorDialog.Create(nil);
try
ColorDialog.Color := GetOrdValue;
if ColorDialog.Execute then
SetOrdValue(ColorDialog.Color);
finally
ColorDialog.Free;
end;
end;
function TColorPropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result := [paMultiSelect,paDialog,paValueList,paCustomDrawn,paRevertable];
if GetDefaultOrdValue <> NoDefaultValue then
Result := Result + [paHasDefaultValue];
end;
function TColorPropertyEditor.OrdValueToVisualValue(OrdValue: longint): string;
begin
Result := ColorToString(TColor(OrdValue));
end;
procedure TColorPropertyEditor.GetValues(Proc: TGetStrProc);
begin
GetColorValues(Proc);
end;
procedure TColorPropertyEditor.PropDrawValue(ACanvas:TCanvas; const ARect:TRect;
AState:TPropEditDrawState);
begin
if GetVisualValue <> '' then
ListDrawValue(GetVisualValue, -1, ACanvas, ARect, [pedsInEdit])
else
inherited PropDrawValue(ACanvas, ARect, AState);
end;
procedure TColorPropertyEditor.ListDrawValue(const CurValue:ansistring;
Index:integer; ACanvas:TCanvas; const ARect:TRect;
AState: TPropEditDrawState);
function ColorToBorderColor(AColor: TColor): TColor;
type
TColorQuad = record
Red,
Green,
Blue,
Alpha: Byte;
end;
begin
if (TColorQuad(AColor).Red > 192) or
(TColorQuad(AColor).Green > 192) or
(TColorQuad(AColor).Blue > 192) then
Result := clBlack
else
if pedsInEdit in AState then
begin
if pedsSelected in AState then
Result := clWindow
else
Result := AColor;
end else
begin
if pedsSelected in AState then
Result := clHighlight
else
Result := clWindow;
end;
end;
var
vRight, vBottom: Integer;
vOldPenColor, vOldBrushColor: TColor;
vOldPenStyle: TPenStyle;
begin
vRight := (ARect.Bottom - ARect.Top) + ARect.Left - 2;
vBottom:=ARect.Bottom-2;
with ACanvas do
begin
// save off things
vOldPenStyle := Pen.Style;
vOldPenColor := Pen.Color;
vOldBrushColor := Brush.Color;
// frame things
if pedsInEdit in AState then
begin
if pedsSelected in AState then
Brush.Color := clWindow
else
Brush.Color := ACanvas.Brush.Color;
end
else
begin
if pedsSelected in AState then
Brush.Color := clHighlightText
else
Brush.Color := clWindow;
end;
Pen.Color := Brush.Color;
Pen.Style := psSolid;
FillRect(ARect);
Rectangle(ARect.Left, ARect.Top, vRight, vBottom);
// set things up and do the work
Brush.Color := StringToColor(CurValue);
Pen.Color := ColorToBorderColor(ColorToRGB(Brush.Color));
Rectangle(ARect.Left + 1, ARect.Top + 1, vRight - 1, vBottom - 1);
// restore the things we twiddled with
Brush.Color := vOldBrushColor;
Pen.Color := vOldPenColor;
Pen.Style := vOldPenStyle;
end;
inherited ListDrawValue(CurValue, Index, ACanvas,
Rect(vRight, ARect.Top, ARect.Right, ARect.Bottom),
AState);
end;
procedure TColorPropertyEditor.ListMeasureWidth(const CurValue:ansistring;
Index:integer; ACanvas:TCanvas; var AWidth:Integer);
begin
AWidth := ACanvas.TextWidth('clGradientInactiveCaption')+25;
end;
procedure TColorPropertyEditor.SetValue(const NewValue: ansistring);
var
CValue: Longint;
begin
if IdentToColor(NewValue, CValue) then
SetOrdValue(CValue)
else
inherited SetValue(NewValue);
end;
function TFontNamePropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result := [paMultiSelect, paValueList, paRevertable];
end;
procedure TFontNamePropertyEditor.GetValues(Proc: TGetStrProc);
var
I: Integer;
begin
for I := 0 to Screen.Fonts.Count -1 do
Proc(Screen.Fonts[I]);
end;
{ TFontCharsetPropertyEditor }
function TFontCharsetPropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result:=[paMultiSelect,paSortList,paValueList,paRevertable,paHasDefaultValue];
end;
function TFontCharsetPropertyEditor.OrdValueToVisualValue(OrdValue: longint
): string;
begin
Result := CharsetToString(OrdValue);
end;
procedure TFontCharsetPropertyEditor.GetValues(Proc: TGetStrProc);
begin
proc(CharsetToString(ANSI_CHARSET));
proc(CharsetToString(DEFAULT_CHARSET));
proc(CharsetToString(SYMBOL_CHARSET));
proc(CharsetToString(MAC_CHARSET));
proc(CharsetToString(SHIFTJIS_CHARSET));
proc(CharsetToString(HANGEUL_CHARSET));
proc(CharsetToString(JOHAB_CHARSET));
proc(CharsetToString(GB2312_CHARSET));
proc(CharsetToString(CHINESEBIG5_CHARSET));
proc(CharsetToString(GREEK_CHARSET));
proc(CharsetToString(TURKISH_CHARSET));
proc(CharsetToString(VIETNAMESE_CHARSET));
proc(CharsetToString(HEBREW_CHARSET));
proc(CharsetToString(ARABIC_CHARSET));
proc(CharsetToString(BALTIC_CHARSET));
proc(CharsetToString(RUSSIAN_CHARSET));
proc(CharsetToString(THAI_CHARSET));
proc(CharsetToString(EASTEUROPE_CHARSET));
proc(CharsetToString(OEM_CHARSET));
proc(CharsetToString(FCS_ISO_10646_1));
end;
procedure TFontCharsetPropertyEditor.SetValue(const NewValue: ansistring);
var
CValue: Longint;
begin
if not SameText(NewValue, 'DEFAULT_CHARSET') then
begin
CValue := StringToCharset(NewValue);
if CValue = DEFAULT_CHARSET then
inherited SetValue(NewValue)
else
SetOrdValue(CValue);
end
else
SetOrdValue(DEFAULT_CHARSET);
end;
{ TBrushStylePropertyEditor }
procedure TBrushStylePropertyEditor.PropDrawValue(ACanvas: TCanvas;
const ARect: TRect; AState:TPropEditDrawState);
begin
if GetVisualValue <> '' then
ListDrawValue(GetVisualValue, -1, ACanvas, ARect, [pedsInEdit])
else
inherited PropDrawValue(ACanvas, ARect, AState);
end;
procedure TBrushStylePropertyEditor.ListDrawValue(const CurValue: ansistring;
Index:integer; ACanvas: TCanvas; const ARect: TRect; AState:TPropEditDrawState);
var
vRight, vBottom: Integer;
vOldPenColor, vOldBrushColor: TColor;
vOldBrushStyle: TBrushStyle;
begin
vRight := (ARect.Bottom - ARect.Top) {* 2} + ARect.Left -2;
vBottom:= ARect.Bottom-2;
with ACanvas do
try
// save off things
vOldPenColor := Pen.Color;
vOldBrushColor := Brush.Color;
vOldBrushStyle := Brush.Style;
// frame things
Pen.Color := Brush.Color;
Brush.Color := clWindow;
Rectangle(ARect.Left, ARect.Top, vRight, vBottom);
// set things up
Pen.Color := clWindowText;
Brush.Style := TBrushStyle(GetEnumValue(GetPropInfo^.PropType, CurValue));
// bsClear hack
if Brush.Style = bsClear then begin
Brush.Color := clWindow;
Brush.Style := bsSolid;
end
else
Brush.Color := clWindowText;
// ok on with the show
Rectangle(ARect.Left + 1, ARect.Top + 1, vRight - 1, vBottom - 1);
// restore the things we twiddled with
Brush.Color := vOldBrushColor;
Brush.Style := vOldBrushStyle;
Pen.Color := vOldPenColor;
finally
inherited ListDrawValue(CurValue, Index, ACanvas,
Rect(vRight, ARect.Top, ARect.Right, ARect.Bottom),
AState);
end;
end;
function TBrushStylePropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result:=(inherited GetAttributes)-[paHasDefaultValue]+[paCustomDrawn];
end;
procedure TBrushStylePropertyEditor.ListMeasureWidth(const CurValue: ansistring;
Index:integer; ACanvas: TCanvas; var AWidth: Integer);
begin
AWidth := 130;
end;
{ TPenStylePropertyEditor }
procedure TPenStylePropertyEditor.PropDrawValue(ACanvas: TCanvas;
const ARect: TRect; AState:TPropEditDrawState);
begin
if GetVisualValue <> '' then
ListDrawValue(GetVisualValue, -1, ACanvas, ARect, [pedsInEdit])
else
inherited PropDrawValue(ACanvas, ARect, AState);
end;
procedure TPenStylePropertyEditor.ListDrawValue(const CurValue: ansistring;
Index:integer; ACanvas: TCanvas;
const ARect: TRect; AState:TPropEditDrawState);
var
vRight, vTop, vBottom: Integer;
vOldPenColor, vOldBrushColor: TColor;
vOldPenStyle: TPenStyle;
i: Integer;
begin
vRight := (ARect.Bottom - ARect.Top) * 2 + ARect.Left;
vTop := (ARect.Bottom - ARect.Top) div 2 + ARect.Top;
vBottom := ARect.Bottom-2;
with ACanvas do
try
// save off things
vOldPenColor := Pen.Color;
vOldBrushColor := Brush.Color;
vOldPenStyle := Pen.Style;
// frame things
Pen.Color := Brush.Color;
Rectangle(ARect.Left, ARect.Top, vRight, vBottom);
// white out the background
Pen.Color := clWindowText;
Brush.Color := clWindow;
Rectangle(ARect.Left + 1, ARect.Top + 1, vRight - 1, vBottom - 1);
// set thing up and do work
Pen.Color := clWindowText;
i:=GetEnumValue(GetPropInfo^.PropType, CurValue);
Pen.Style := TPenStyle(i);
MoveTo(ARect.Left + 1, vTop);
LineTo(vRight - 1, vTop);
MoveTo(ARect.Left + 1, vTop + 1);
LineTo(vRight - 1, vTop + 1);
// restore the things we twiddled with
Brush.Color := vOldBrushColor;
Pen.Style := vOldPenStyle;
Pen.Color := vOldPenColor;
finally
inherited ListDrawValue(CurValue, -1, ACanvas,
Rect(vRight, ARect.Top, ARect.Right, ARect.Bottom),
AState);
end;
end;
function TPenStylePropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result:=(inherited GetAttributes)-[paHasDefaultValue]+[paCustomDrawn];
end;
procedure TPenStylePropertyEditor.ListMeasureWidth(const CurValue: ansistring;
Index:integer; ACanvas: TCanvas; var AWidth: Integer);
begin
AWidth := 130;
end;
{ TFontPropertyEditor }
procedure TFontPropertyEditor.Edit;
var FontDialog: TFontDialog;
begin
FontDialog := TFontDialog.Create(nil);
try
FontDialog.Font := TFont(GetObjectValue(TFont));
FontDialog.Options := FontDialog.Options + [fdShowHelp, fdForceFontExist];
if FontDialog.Execute then
SetPtrValue(FontDialog.Font);
finally
FontDialog.Free;
end;
end;
function TFontPropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result := [paMultiSelect, paSubProperties, paDialog, paReadOnly];
end;
//------------------------------------------------------------------------------
{ TImageIndexPropertyEditor }
function TImageIndexPropertyEditor.GetImageList: TCustomImageList;
var
Persistent: TPersistent;
Component: TComponent absolute Persistent;
PropInfo: PPropInfo;
Obj: TObject;
begin
Result := nil;
Persistent := GetComponent(0);
if not (Persistent is TComponent) then
Exit;
if Component is TMenuItem then
begin
Component := Component.GetParentComponent;
while (Component <> nil) do
begin
if (Component is TMenuItem) and (TMenuItem(Component).SubMenuImages <> nil) then
Exit(TMenuItem(Component).SubMenuImages);
if (Component is TMenu) then
Exit(TMenu(Component).Images);
Component := Component.GetParentComponent;
end;
end
else
begin
Component := Component.GetParentComponent;
if Component = nil then
Exit;
PropInfo := TypInfo.GetPropInfo(Component, 'Images');
if PropInfo = nil then
Exit;
Obj := GetObjectProp(Component, PropInfo);
if Obj is TCustomImageList then
Exit(TCustomImageList(Obj));
end;
end;
function TImageIndexPropertyEditor.GetAttributes: TPropertyAttributes;
begin
Result := [paValueList, paCustomDrawn, paRevertable];
if GetDefaultOrdValue <> NoDefaultValue then
Result := Result + [paHasDefaultValue];
end;
procedure TImageIndexPropertyEditor.GetValues(Proc: TGetStrProc);
var
Images: TCustomImageList;
I: Integer;
begin
Proc(IntToStr(GetDefaultOrdValue));
Images := GetImageList;
if Assigned(Images) then
for I := 0 to Images.Count - 1 do
Proc(IntToStr(I));
end;
procedure TImageIndexPropertyEditor.ListMeasureHeight(const AValue: ansistring;
Index: integer; ACanvas: TCanvas; var AHeight: Integer);
var
Images: TCustomImageList;
begin
AHeight := ACanvas.TextHeight('1');
Images := GetImageList;
if Assigned(Images) then
AHeight := Max(AHeight, Images.Height + 2);
end;
procedure TImageIndexPropertyEditor.ListDrawValue(const CurValue: ansistring;
Index: integer; ACanvas: TCanvas; const ARect: TRect; AState: TPropEditDrawState);
var
Images: TCustomImageList;
R: TRect;
OldColor: TColor;
begin
Dec(Index);
Images := GetImageList;
R := ARect;
if Assigned(Images) then
begin
if (pedsInComboList in AState) and not (pedsInEdit in AState) then
begin
OldColor := ACanvas.Brush.Color;
if pedsSelected in AState then
ACanvas.Brush.Color := clHighlight
else
ACanvas.Brush.Color := clWhite;
ACanvas.FillRect(R);
ACanvas.Brush.Color := OldColor;
end;
Images.Draw(ACanvas, R.Left + 1, R.Top + 1, Index, True);
R.Left := R.Left + Images.Width + 2;
end;
inherited ListDrawValue(CurValue, Index, ACanvas, R, AState);
end;
initialization
RegisterPropertyEditor(TypeInfo(TGraphicsColor), nil, '', TColorPropertyEditor);
RegisterPropertyEditor(TypeInfo(TPenStyle), nil, '', TPenStylePropertyEditor);
RegisterPropertyEditor(TypeInfo(TBrushStyle), nil, '', TBrushStylePropertyEditor);
RegisterPropertyEditor(TypeInfo(AnsiString), TFont, 'Name', TFontNamePropertyEditor);
RegisterPropertyEditor(TypeInfo(TFontCharset), nil, 'CharSet', TFontCharsetPropertyEditor);
RegisterPropertyEditor(TypeInfo(TImageIndex), TComponent, 'ImageIndex', TImageIndexPropertyEditor);
RegisterPropertyEditor(ClassTypeInfo(TFont), nil,'',TFontPropertyEditor);
RegisterPropertyEditor(ClassTypeInfo(TGraphic), nil,'',TGraphicPropertyEditor);
RegisterPropertyEditor(ClassTypeInfo(TPicture), nil,'',TPicturePropertyEditor);
RegisterPropertyEditor(ClassTypeInfo(TBitmap), TSpeedButton,'Glyph', TButtonGlyphPropEditor);
RegisterPropertyEditor(ClassTypeInfo(TBitmap), TBitBtn,'Glyph', TButtonGlyphPropEditor);
end.
|